Place Value
In the number 4,382.6, what place is the digit 8 in?
Tens
Round 67 to the nearest tens.
70
A pencil costs $1.50. You pay $2.00. How much change do you get?
$0.50 (50 cents)
Solve: 52 − 28
24
Emma has 37 stickers. Her friend gives her 28 more. How many stickers does Emma have now?
65 stickers
List all the factors of 10.
1, 10, 2, 5
Is 7 prime or composite?
Prime, because it's only factors are 1 and 7.
In 6,427.9, what place is the digit 9 in?
Tenths
Round 348 to the nearest hundred.
300
A notebook costs $3.75. You pay $5.00. How much change do you get?
$1.25
Solve: 304 − 176
128
A library has 204 books. Students borrow 87 books. How many books are left?
117 books
What are the first five positive multiples of 7?
7, 14, 21, 28, 35
Is 15 prime or composite? Explain why.
Composite, because it has factors 1, 3, 5, and 15.
In 8,305.47, what is the value of the digit 3?
300
Round 6,725 to the nearest thousand.
7000
A toy costs $6.45. You pay $10.00. How much change do you get?
$3.55
Solve: 1,002 − 485
517
A school collected 1,475 cans in September and 2,368 cans in October. How many cans did they collect altogether?
3,843 cans
Which of these numbers are factors of 24: 5, 6, 8, 9?
6, 8
Which of these numbers are prime: 9, 11, 13, 15?
11, 13
In 12,648.35, what place is the digit 5 in, and what is its value?
Hundredths place; 0.05
Round 14.67 to the nearest tenth.
14.7
You buy a book for $12.85 and pay with a $20 bill. How much change do you receive?
$7.15
Solve: 5,403 − 2,768
2635
Noah has $25.00. He buys a game for $17.65. How much money does he have left?
$7.35
Is 28 a multiple of 4?
yes
7x4=28
How many prime numbers between 1 & 100?
26 prime numbers
In 73,406.82, name the place and value of both the 7 and the 2.
7: ten thousands, worth 70,000.
2: hundredths, worth 0.02.
Round 23.96 to the nearest tenth.
24.0
You buy markers for $7.65 and a notebook for $4.80. You pay with a $20 bill. How much change do you receive?
$7.55 (total cost: $12.45)
Solve: 7,000 − 3,856
3144
A class raised $186.75 at a bake sale and $247.80 at a book sale. They spent $158.95 on supplies. How much money remains?
$275.60 (total raised: $434.55)
What are all the common multiples of 2 and 5 between 1 and 50?
10, 20, 30, 40, 50
List 5 prime numbers between 1 & 100
1,2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,6167,71,73,79,83,89,97)